Many regular visitors to the Mütter Museum in Philadelphia have their favorite specimen. There’s the megacolon—a 2.4-meter-long brown organ, the result of Hirschsprung disease in a 29-year-old man who ...

The Mutter Museum is located at 19 S. 22nd Street in Center City. It is a medical museum that contains a collection of anatomical and pathological specimens, wax models, and antique medical equipment.